DTC C1201 stands for “Traction Control System Malfunction.” This means that there is an issue with the traction control system in your Lexus vehicle. It may not be functioning properly, or there may be a malfunction in one of the components of the system. It is important to diagnose and fix this issue as soon as possible, as the traction control system helps to improve the stability and safety of your vehicle while driving.
What is a Lexus DTC c1201 Error?
A Lexus DTC C1201 error is a diagnostic trouble code indicating an issue with the vehicle’s brake system. It specifically refers to a malfunction in the brake actuator control circuit, which is responsible for controlling the brake actuator, which is the component that activates the brakes when the brake pedal is pressed.
This error may cause issues with the brake system such as reduced braking power or the inability to engage the brakes at all. It is recommended to have the issue diagnosed and repaired by a certified mechanic as soon as possible to ensure the safety of the vehicle.
What is a Lexus DTC c1201 Error Symptoms?
Brake warning light illuminating the dashboard
The brake pedal feeling spongy or unresponsive
Brake system not functioning properly
Vehicle not stopping as expected or taking longer to stop
Loss of power steering or stability control
Lexus DTC c1201 Common Reasons for this fault
There are several common reasons why a Lexus may display the DTC C1201 code:
Failure of the ABS pump motor
ABS pump motor relay failure
ABS pump motor control circuit malfunction
ABS hydraulic control unit malfunction
Wiring issues in the ABS system
Failed ABS sensor
ABS pump motor control circuit open or shorted
ABS pump motor control circuit resistance too high or too low
ABS pump motor circuit malfunction
ABS pump motor control circuit malfunction due to poor connection or corrosion in the wiring.
How do You Troubleshoot Lexus DTC C1201 Error Code?
Here are some steps to troubleshoot the DTC C1201 error code on a Lexus:
Check for any loose or damaged connections to the ABS control module. This can cause the error code to be triggered.
How to fix it?
First, locate the ABS control module. This is typically located in the engine compartment, near the front of the vehicle.
Inspect the connections to the module for any signs of damage or looseness.
If any of the connections are loose, tighten them using a wrench or pliers.
If any of the connections are damaged, they will need to be replaced.
If you are unable to locate the ABS control module or are unsure how to properly tighten or replace the connections, it is recommended to seek the assistance of a trained mechanic or refer to the vehicle’s owner’s manual for further guidance.
Check for any damaged wiring or damaged ABS sensors. This can also cause the error code to be triggered.
How to fix it?
Determine the extent of the damage: Before attempting to fix the damaged wiring or ABS sensors, it is important to assess the extent of the damage. This can be done by visually inspecting the wires or sensors for any visible damage, such as frayed or cut wires, or by using diagnostic tools to check for any electrical issues.
Repair or replace damaged wiring: If the wiring is damaged, it may need to be repaired or replaced. To repair damaged wiring, use wire strippers to remove any frayed or cut ends and then use electrical tape to cover any exposed wires. If the damage is too extensive, it may be necessary to replace the entire wire.
Replace damaged ABS sensors: If the ABS sensors are damaged, they will need to be replaced. To do this, first, remove the damaged sensor and then attach the new sensor in its place. It is important to follow the manufacturer’s instructions for replacing the sensors, as different vehicles may have different procedures for removing and installing the sensors.
Test the repair: Once the repair has been completed, it is important to test the system to ensure that it is working properly. This can be done by using diagnostic tools or by driving the vehicle and monitoring the ABS system for any issues. If any issues are detected, it may be necessary to further troubleshoot and repair the system.
Check the ABS control module for any malfunction or damage. If the module is faulty, it may need to be replaced.
How to fix it?
Identify the problem: The first step in fixing any malfunction or damage to the ABS control module is to identify the issue. You can do this by using a diagnostic tool to read any error codes or by performing a visual inspection of the module and the ABS system.
Disconnect the battery: Before working on the ABS control module, it is important to disconnect the battery to avoid any electrical accidents.
Remove the ABS control module: Depending on the make and model of your vehicle, the ABS control module may be located in different areas. You may need to consult your vehicle’s service manual to find its exact location. Once you have located it, remove it by loosening any bolts or screws that hold it in place.
Test the ABS control module: Once you have removed the module, you can test it to determine the extent of the damage. You can use a multimeter to check for any short circuits or open circuits within the module.
Replace the ABS control module: If the module is damaged beyond repair, you will need to replace it with a new one. Make sure to purchase a replacement module that is compatible with your vehicle.
Reinstall the ABS control module: Once you have a new module, follow the steps in reverse order to reinstall it. Make sure to tighten all bolts and screws securely and reconnect the battery.
Test the ABS system: After re-installing the module, it is important to test the ABS system to ensure it is functioning properly. You can do this by using a diagnostic tool or by performing a road test.
Check the brake fluid level and ensure it is full and at the correct level. Low brake fluid levels can cause the error code to be triggered.
Check the brake system for any leaks or damaged components.
Clear the error code and test the vehicle to see if the error code reoccurs. If it does, further diagnosis may be needed.
It is recommended to consult a mechanic or a Lexus dealer for further diagnosis and repair if the error code persists after trying these steps.
Ibrar Ayyub is an experienced technical writer with a Master's degree in computer science from BZU Multan University. He has written for various industries, mainly on home automation and engineering. He has a clear and simple writing style and is skilled in using infographics and diagrams. He is a great researcher and is able to present information in a well-organized and logical manner.